This is not a dumb question, Loralee. I am a CPAP user and take a 10 to 12' extension cord with me, just in case. Also, the last time I flew, I checked my machine at the airport in a reasonably sturdy travel case, but the mask itself got broken in transit. You may want to carry at least the headgear and mask in your carry on; or, pack a second mask in a location where it won't get cracked or damaged.